Forging-press.



No. 804,542. PATENTED NOV. 14, 1905.

H. V. LOSS.

FORGING PRESS.

APPLICATION PILEDYDIKLZL 1904. v

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' No. 804,542 PATENTED NOV. 14, 1905.

' H. V. LOSS.

FORGING PRESS. APPLICATION FILED DEC. 21, 1004.

2 SHEETS-SEEET 2 WITNESSES 11v VEN TOR ATTORNEY.

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liipccification of Letters. iEatcnt.

Patented Nov. 14 1905.

Application filed December 21, 1904. Serial l lo. 237,763.

To all whom it may concern.-

ltle it known that l, HENBIK V. Loss, a citi Zen of the United iitates, and a resident of the city and county of Philadelphia, State of Pennsylvania, have invented certain new and use ful Improvements in Forging-Presses, of which the following is a specification.

My invention relates to improvements in machines for forging carwheels or similar blanks which are to be subsequently finished in a rollingmachine; and the objects of my invention are to furnish a machine having a pair of dies for forging the'sides of a circular blank and two or more pairs of dies for op erating upon-the rim of the blank to insure at this point. The dies of each oi dies are arranged opposite one another, and all of the dies which. operate upon the rim oi the blank operate at right angles to the line of movement of the dies which forgo the sides of the blank;

My invention further relatesto a means for shearing" oil any fins that may be formed upon the rim or periphery of the blank by the action of the dies which operate upon the rim, so as to leave the blank when it is taken from the forging-machine in condition to be oper ated upon. by the rollingmachine without any further treatment.

in the accompanying part ol this specification, characters of reference indicate similar parts throughout the several views, Figure 1 is .a side elevation, partly in central sectionalelevation, of a forging-press embodying-my im. provements; Fig. 2', a plan of the machine, the upper die and its actuating hydraulic cylinder being removed; Fig. 2,, a plan oi the lower die, the moveblering surrounding this die, and a longitudinal sectional view of the hydraulic cylinder, the prison of which actnetes the die-snrrtmnding ring; t, a elevation of the upper and lower dies for ior no the sides oi the blanlt and of the mor snrronndinp; the lower die; a perspectiveview ol one oi the dies for for-g. the rim of the blanlry J Y, perspective viev oil part of the movable ring, surrounding the lower sidedorging die, showing dovetail solidi-i ifor one-oi the rim-forging dies.

1 is an upper and Q a lower die, the former drawings, forming" carried by the piston 5 of a vertically-placed hydraulic cylinder 3 and I the latter by a suit able foundation or bed 4i.

and in which sirnil r 6 represents a number of l1orizontallydisposed hydraulic cylinders, in the present case four, the plnngers 7 of which carry dies 8, which are adapted to engage the peri 'ihcry of the blank forged between the dies 1 2 to forgo the tread of the wheel.

'lh'p sides of the web, hub, and tread are forged between thedies 1 and 2, which are each surrounded with a central teat a, surrounded by a groove 6, to form in the center of the sides of the blank depressions which are separated by a web of metal 9, which is not removed until after the wheel has been completely formed in the forging-machine, for which I have filed-an application for patent simulta neously with this application, said machine being an improvement upon Letters Patent of the United Eitatcs granted to me on the-12th day of August. 1902, No. 706,674i.

The metal to be forged is placed between the dies 1 2, which are closed to form the blank 10, the closing" movement of the dies 1 2 being limited to the desired extent by stops 16,, which in the present case are merely lugs cast or secured to arms 17, forming part of die 1 r and adapted'to engage projections 18, carried by the ring 12. (See Figs. 2, 3, and i.) The dies 1 2 having been closed upon the blank, the hydraulic liquid is admitted to cylinders 6, causing: theirpistons to be projected and the dies 8 to engage the periphery of the blank 10 to form the tread of the wheel. The dies 8 work freely between the dies 1 2--that is, their movementis not impeded by these dies in any manner.

in order to insure a perfect forging, the blank in its'rbugh form contains a greater amount of metal than it does in its finished form. When the dies 1 2 are closed, their interior parts are filled with metal, the surplus being forced out at the periphery of the blank. The action of the d es 8 is to crowd the metal in upon. itself at the periphery of the blank, so as to obtain the greatest density possible at this point; but there will be still a greater amount of metal than is necessary, and in order to permit this to escape when the dies'8 are one another, as shown in Fig". 23.

After the dies 8 have been completely closed to forgo the rim of the wheel the surplus metal which has escaped between the ends of the while still held against the periphery of the closed. the ends of the dies 8 are separated fromdies 8 can he removed by causing" these dies blank be moved eirciunl erentisll eround e blank.

die 2 and the cutters l t to shear Off the line.

The shoulder carried by the die for carrying the ring 12 is best shown in 1.

lo. order to permit the movement of the dies 8 above, tl ey may be secured to the pistonsi'by aslidingjoint, as shown, 23 denoting transverse grooves in the outer ends of the pistons, which are adapted to receive correspendingly-sheped necks 2e, carried by the ies 8.

The cylinder 3, is tied to the bed l'by bolts 25 or in any other convenient manner.

- ln some cases the dies 8 would be used to forge in any surplus metal that might be forced out between them, the sliding connec tion of the dies to the pistons Y permitting the dies to be moved to either side, so as to cause them to and forge all parts of the periphery of the wheel-blanlr equally. This feature of the press would be particu larly valuable were the cutters removed from the dies 8 or when the cutters, becoming dull,

would fail to make a cleen cut. in such cases any traces of a lin upon the blsnlc would create a sliver upon the wheel when subsequently operated upon by a rolling-machine.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent- 1. in a forging-machine, in combination, a pair of dies adopted to form oppositesides of To end l lit into each die 8 i the blank, a multiplicity of dies operating at ht angles to said first dies adapted to form the periphery or tread of the blank, means for carrying the heads of said latter dies so that they can be, moved circumferentielly around said blank, and means for imparting said latter movement to said latter dies.

2. ln forging-machine, in combination, an upper and a lower die between which the sides of the blank are formed, a circumferentiallymovablering carried by one of said dies, a multiplicity of dies adapted to operate at right angles to said lirst dies to form the periphery or trend the blank, the heads of said letter dies being carried in guidesin said ring, and means for circumfercntially movingsaid ring and die-heads.

in a wheel blank-forging machine, in combination, an upper and a lower die between which the sides of the blank are formed, a multiplicity of dies operating at right angles to and between said first dies adapted to form the periphery or tread of the blank, cutters carried by the outer end of said latter dies,

and means whereby said latter dies may be moved circuinferentially in relation to said first dies and the blank,

ln a forging-machine, in combination, an upper and s lower die, a circumferentiallymovable ring carried by one of said dies and. having radial guides, a hydraulic cylinder, a piston in said cylinder, a connection between said piston and said ring, a multiplicity of hydraulic cylinders the pistons of which operate at right angles to the movement of said first dies, dies carried by said ring and movable along" the guides carried thereby and adapted to be operated by said letter pistons, and cutters carried by said dies.

HENRIK V. LOSS. Witnesses:

CHA'nLEs A. BUTTER, J. CRAIG SriinLDs. 

